Jonathan Guez

Jonathan Guez
Achva Academic College · Department of Psychology

PhD.

About

47
Publications
16,305
Reads
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1,746
Citations
Citations since 2016
12 Research Items
799 Citations
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
2016201720182019202020212022020406080100120140
Additional affiliations
January 2006 - December 2013
January 2000 - December 2011
Ben-Gurion University of the Negev

Publications

Publications (47)
Article
Full-text available
The relationships between memory processes and oscillatory electroencephalography (EEG) are well established. Neurofeedback training (NFT) may cause participants to better regulate their brain EEG oscillations. The present study is a double-blind sham-controlled design investigating the effect of NFT on memory. NFT included up-training upper alpha...
Article
Divided attention (DA) at encoding has been shown to significantly disrupt later memory for the studied information. However, what type of processing gets disrupted during DA remains unresolved. In this study, we assessed the degree to which strategic effortful processes are affected under DA by comparing the effects of DA at encoding under intenti...
Article
Full-text available
In this study, we evaluate the conceptualization of encoding and retrieval processes established in previous studies that used a divided attention (DA) paradigm. These studies indicated that there were considerable detrimental effects of DA at encoding on later memory performance, but only minimal effects, if any, on divided attention at retrieval....
Article
Eating disorders (ED) are an increasing problem in children and young adolescents. This paper examines the use of self-figure drawing in the assessment of eating disorders. We combined the use of self-figure drawing as a short and non-intrusive tool with the administration of previously validated questionnaires (EAT-26 and the BSQ). Seventy-six wom...
Article
Full-text available
Individuals with posttraumatic stress disorder (PTSD) are haunted by persistent memories of the trauma, but ironically are impaired in memories of daily life. The current set of 4 experiments compared new learning and memory of emotionally neutral content in 2 groups of patients and aged- and education-matched controls: 20 patients diagnosed with c...
Article
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Studies have shown associative-memory decline in aging. While the literature is inconclusive regarding the source of the deficit, some researchers argue that it is caused by impaired encoding and maintenance processes in working-memory (WM). Successful retrieval of a stimulus depends on its sequential presentation in the learning list: stimuli at t...
Article
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Intimacy and sexuality are fundamental issues in human nature, but have been neglected in the rehabilitation of mental health patients, particularly those admitted into psychiatric wards. Patients’ sexuality is excluded from the discourse; yet it exists in the daily lives of the patients. The study examines the sexual needs and challenges of people...
Article
Full-text available
Associative memory deficit underlies a part of older adults’ deficient episodic memory due to the reduced ability to bind units of information. In this article we further assess the mechanism underlying this deficit, by assessing the degree to which we can model it in young adults under conditions of divided attention. We shall describe two experim...
Article
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Background and Objectives: Mild cognitive impairment (MCI) is often a precursor of dementia, and in particular of Alzheimer's Disease (AD) which is the most common cause of dementia. Individuals with amnestic MCI are several-fold more likely to develop AD than the general population. Therefore, MCI comprises a well-detectable, early stage time-poin...
Article
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Studies designed to explore memory for single items versus paired items (i.e., associative memory) in young adults show inconsistent results. Some studies report a decrease in associative recognition and others report mild-to-moderate or even a null effect. The studies often do not take into account stimuli serial position (SSP) when analyzing the...
Article
In this prospective study we compared Hemoglobin A1c (HbA1c) levels in T2DM (Type 2 diabetes) patients who received psycho-educational intervention vs. usual care. Intervention was provided by pharmaceutics students, and accompanied by an academic course. We further examined the effect of the pedagogical format by which students were taught on HbA1...
Article
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Mild cognitive impairment (MCI) is a syndrome characterized by a decrease in cognitive abilities, while daily function is maintained. This condition, which is associated with an increased risk for the development of Alzheimer’s disease, has no known definitive treatment at present. In this open-label pilot study we explored the possible benefits of...
Article
Full-text available
Psychological stress, induced by the Trier Social Stress Test (TSST), has repeatedly been shown to alter memory performance. Although factors influencing memory performance such as stimulus nature (verbal/pictorial) and emotional valence have been extensively studied, results whether stress impairs or improves memory are still inconsistent. This st...
Article
Full-text available
Altered brain anatomy in specific gray-matter regions has been shown in patients with posttraumatic stress disorder (PTSD). Recently, white-matter tracts have become a focus of research in PTSD. The corpus callosum (CC) is the principal white-matter fiber bundle, crucial in relaying sensory, motor and cognitive information between hemispheres. Alte...
Data
Complete Data Set used for data analysis in the current study. (ZIP)
Article
Properties of the binding mechanism in associative recognition were studied by examining the influence of the pictorial superiority effect on the age-related associative deficit. The informative aspect of associative recognition is the recollection of the pairing. Previous findings indicate that recollection is susceptible to aging and that pictori...
Article
Previous studies have suggested an associative deficit hypothesis [Naveh-Benjamin, M. (200028. Naveh-Benjamin, M., & Guez, J. (2000). The effects of divided attention on encoding and retrieval processes: Assessment of attentional costs and a componential analysis. Journal of Experimental Psychology: Learning, Memory, and Cognition, 26(6), 1461–1482...
Article
Full-text available
The effect of emotional arousal on memory presents a complex pattern with previous studies reporting conflicting results of both improved and reduced memory performance following arousal manipulations. In this study we further tested the effect of negative emotional arousal (NEA) on individual-item recognition and associative recognition of neutral...
Article
Patients with posttraumatic stress disorder (PTSD) display abnormal emotional processing and bias towards emotional content. Most neurophysiological studies in PTSD found higher amplitudes of event-related potentials (ERPs) in response to trauma-related visual content. Here we aimed to characterize brain electrical activity in PTSD subjects in resp...
Article
Full-text available
The benefits of clinical neurofeedback training are well known, however, its adverse side-effects are less studied. This research focuses on the transient adverse side effects of neurofeedback training via a double-blind, sham/controlled methodology. Thirty healthy undergraduate students volunteers were randomly divided into three treatment groups:...
Article
Full-text available
Post traumatic patients experience a wide range of symptoms, some of them existential in nature which we term "dissociative being." Many varied psychotherapeutic approaches are available for the treatment of post traumatic patients. Nevertheless, in view of this disorder's complexity, therapists face shortcomings when employing each of these therap...
Article
This study examined whether two therapy interventions – relational reframe followed by empty chair – were associated with increases in sadness intensity and decreases in anger intensity among a sample of 61 undergraduate students suffering from unresolved anger toward an attachment figure (e.g. parent, sibling, and past-romantic partner). Participa...
Conference Paper
Full-text available
Background: Gray-matter volume loss (e.g., in the hippocampus and amygdala) are frequently reported in posttraumatic-stress disorder (PTSD). Recently, studies have highlighted white-matter alterations as potentially involved in PTSD symptomatology. While these studies show promise for further characterization of PTSD-related abnormalities, most cri...
Conference Paper
Posttraumatic stress disorder (PTSD) patients display abnormal emotional processing and bias towards negative emotional content. In the current study we aimed to test the hypothesis that abnormal emotional responsiveness in PTSD is reflected in altered brain electrical activity, as measured via event-related potentials (ERPs). ERPs were recorded fr...
Article
Memory deficits are a common complaint of patients with posttraumatic stress disorder (PTSD). Despite vivid trauma-related memory, previous studies report memory impairment for nontrauma-related stimuli when compared to controls, specifically in associative memory (Guez et al., 2011). Healthy individuals show hemispheric memory asymmetry with left-...
Conference Paper
Full-text available
Memory deficits are a common complaint of patients with post-traumatic stress disorder (PTSD). Notably, alongside their persistent personal traumatic memory, traumatized patients may be impaired not only in remembering aspects of the trauma/fear-related stimuli but also in non-trauma related memory, with studies reporting a robust impairment in mem...
Conference Paper
Background: Memory deficits are a common complaint reported by patients with post-traumatic stress disorder (PTSD). Despite their vivid trauma-related memory, studies confirmed memory impairment for non-trauma related stimuli when compared to controls; specifically in associative memory (Guez et al., 2011). Studies in healthy individuals showed hem...
Conference Paper
Full-text available
Memory deficits are a common complaint reported by posttraumatic stress disorder (PTSD) patients. Despite their vivid trauma-related memory, studies in PTSD patients confirmed memory impairment for non-trauma related stimuli when compared to controls; specifically in associative memory. Magnetic resonance imaging (MRI) studies in PTSD patients have...
Article
Full-text available
We wished to investigate whether women with a history of eating disorders have an increased risk for adverse obstetric and perinatal outcomes. A retrospective study was conducted comparing pregnancy complications in patients with and without eating disorders. Deliveries occurred during the years 1988-2009 in a tertiary medical center. Women lacking...
Article
Full-text available
Several recent studies have indicated that retrieval, unlike encoding, is only minimally affected by dividing at-tention, but is associated with significant secondary task costs. The reported experiment manipulated the strength of pre-experimental semantic associations, using a cued-recall paradigm and a multi-measure approach. This allowed the ass...
Article
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Professionals working in mental health often exhibit high levels of strain leading to poor psychological wellbeing, emotional exhaustion and depletion of personal resources. Even under tight global economic conditions preventing burnout should be given high priority among mental health providers. This paper looks at the wide spectrum of stressors f...
Article
The current study examined how negative and positive mood influence the recognition memory of people with varying levels of perfectionism. An experiment was conducted in which 314 students were assigned randomly to either a positive, negative, or neutral mood induction condition. Participants completed measures of perfectionism cognitions and trait...
Article
The current paper describes the results of an experiment in which 200 students who varied in levels of trait perfectionism performed a laboratory task and then were assessed in terms of levels of state affect, state self-esteem, and state automatic thoughts. Independent variables included task difficulty (high versus moderate level of difficulty) a...
Article
Personality trait-congruent implicit content processing was studied experimentally. In Experiment-1 (N = 132), individual differences in Self-Criticism were most strongly associated with incidental learning of negative achievement words, whereas individual differences in Dependency were most strongly associated with incidental learning of negative...
Article
Full-text available
Despite the detrimental effects of divided attention at encoding on later memory performance, results described in the literature do not unequivocally specify which processes are interrupted during encoding by participants' occupation with a concurrent task. Using a processing analysis framework where the encoding process is viewed as a multiphase...
Article
Full-text available
Several recent studies have indicated that retrieval, unlike encoding, is only minimally affected by dividing attention, but is associated with significant secondary task costs. The reported experiment further investigated the effects of divided attention at encoding and retrieval on recall by manipulating the number of presentations of word pairs...
Article
Full-text available
Divided attention at encoding leads to a significant decline in memory performance, whereas divided attention during retrieval has relatively little effect; nevertheless, retrieval carries significant secondary task costs, especially for older adults. The authors further investigated the effects of divided attention in younger and older adults by u...
Article
Full-text available
In this study, we evaluated an associative deficit hypothesis. This hypothesis suggests that the deficit seen in the episodic memory performance of older adults is due, in considerable part, to older adults' difficulty in binding together unrelated components of an episode into a cohesive entity (Naveh-Benjamin, 2000). The study extended the condit...
Article
Full-text available
Previous studies have established an associative deficit hypothesis (Naveh-Benjamin, 2000), which attributes part of older adults' deficient episodic memory performance to their difficulty in creating cohesive episodes. In this article, the authors further evaluate this hypothesis, using ecologically relevant materials. Young and old participants s...
Article
Full-text available
This study further tested an associative-deficit hypothesis (ADH; M. Naveh-Benjamin, 2000), which attributes a substantial part of older adults' deficient episodic memory performance to their difficulty in merging unrelated attributes-units of an episode into a cohesive unit. First, the results of 2 experiments replicate those observed by M. Naveh-...
Article
Full-text available
Divided attention at encoding is well known to have adverse effects on episodic memory performance (e.g., Naveh-Benjamin & Greg, 2000). This article attempts to determine whether these effects are a result of the interruption of encoding of associative information among the components of an episode. Five experiments, using different types of episod...
Article
Full-text available
Recent research has shown that divided attention at retrieval, in contrast to encoding, affected memory performance only minimally. This immunity at retrieval was associated with a significant secondary task cost. In this article the authors further investigated these effects employing a cued-recall task and a multimeasure approach with accuracy, l...
Article
Full-text available
Despite a tradition in cognitive psychology that views encoding and retrieval processes in human memory as being similar, F. I. M. Craik, R. Govoni, M. Naveh-Benjamin and N. D. Anderson (1996) have recently shown that notable differences exist between the 2 when divided-attention manipulations are used. In this article, the authors further examined...

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